hitachi plc d series operation manual - the service...

© 2000-2008 Lighthouse PLCs, Inc. - 56 - Hitachi D-Series Battery Replacement

[2] Precautions on Battery Replacement

(a) Replace the battery within 2 minutes. If the D series is left without a battery or more than 2 minutes, the programs stored in the memory will be lost.

The D series uses a lithium battery. Do not short the battery. Keep the battery away from open flames. Do not attempt to charge the battery. Do not disassemble the battery. Do not apply undue force to the terminal board.

The user should not discard a used battery. Dispose only in an approved and recognized manner.

(c) The battery cannot be mounted on the base if the polarities are reversed. (d) The manufacturing number stamped onto the battery designated the

manufacturing date.

<<Example>>

Indicates Month: A=Jan, B=Feb, etc. Indicates Lower Digit of Year: 2=2002

< 2E = Indicates manufactured in May 2002 >

(e) Store the battery in a dry, cool and dark location. (f) The original D series battery was a CR3650 with leads. This battery has been

discontinued. The approved replacement is a CR2450-T1. Although this battery has a smaller diameter, it will fit into the D series, and the leads require no adjustment.

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